Draft-equalizer



(No Model.)

I. J. STONER.

DRAFT EQUALIZBR.

Patented June 3, '1890.

Asumsrau, n. c,

UNITED STATES PATENT OFFTCE.

IRIVIN J. STONER, OF NVAUPONSEE, ILLINOIS.

DRAFT-EQUALIZER.

SPECIFICATION forming part of Letters Patent No. 429,222, dated .T une3, 1890.

Application tiled February 24, 1890. Serial No. 341,533. (No model.) v

To all whom it may concern:

Be it known that I, IRWIN J. STONER, a citizen of the United States,residing at Tauponsee, in the county of Grundy and State of Illinois,have invented a n ew and useful Draft- Equalizer, of which the followingis a specitication.

This invention has relation to four-horse equalizers for plows or otherheavy farm-Inachines, and among the objects in view are to exactlyequalize the strain upon the four horses.

Vith this main object in view the invention consists in a series ofcompound levers and single and double trees, all arranged as hereinafterdescribed, and particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a plan of an equalizerconstructed in accordance with my invention. Fig. 2 is a detail inperspective of the doubletree, its adjacent levers, and theirconnections.

Like numerals of reference indicate like parts in all the figures of thedrawings.

1 represents the rear draft-bar, and from the same there projectforwardly opposite pairs of draft-straps 2 and 3, the rear ends of whichare securely bolt-ed to the upper and lower surfaces of the bar, saidstraps converging toward their front ends, as shown. The straps 2 arecurved, and are pivoted, as at 4, slightly to one side of the center ofthe main doubletree 5, and to the straps said doubletree is pivoted, asat 4. The opposite companion straps 3 are straight and slightlydiagonally disposed, and are pivoted, as at 6, to the front end of thecurved straps 2, said pivot also passing through the inner end of thelever 7, which at one side of the pivot 6 is connected pivotally, as at8, to a pair of short straps 9, the rear ends of which are pivoted, asat 10, to the eXtreme right end of the main doubletree 5. The outer endof the lever 7 has pivoted thereto, as at 11, a pair of straps 12, whichat their outer ends are pivoted, as at 13, to a singletree 14.

At the left of the main doubletree 5 there are connected a pair ofstraps 15, the rear ends of which are pivoted, as at 16, to saiddoubletree, and the forward ends of which are pivoted, as at 17, nearthe inner end or to the right of the center of the lever 18. The outerend of the lever 18 has pivoted, as at 19, a pair of straps 20, which attheir forward ends are pivoted, as at 21, to a singletree 22. Theextreme right of the lever 18 has pivoted thereto, as at 23, a pair ofstraps 24, which at their forward ends are pivoted, as at 25, to asecondary doubletree 26. To the opposite ends of the secondarydoubletree 26 are pivoted, as at 27, opposite straps 28, the forwardends of which are pivoted, as at 29, to singletrees 30, so that thesecondary doubletree earries two singletrees, as will be understood.

By the above construction it will be apparent that I have provided adraft-equalizer to be employed with four horses, and that by thepeculiar manner of arranging the levers and double and single trees,together with their connections, the draft will be equally applied toeach of the animals.

Having thus described my invention, what I claim is 1. In adraftequalizer, the combination of the following elements: the rear bar1, the opposite straps 2 and 3, connected at their rear ends to saidbar, the main doubletree 5,' pivoted, as at 4, to the inner one of theconverging straps, the lever 7, connected by the straps 9 to the outerright-hand end of the main doubletree, said lever also being pivoted tothe ends of the straps 2 and 3 at the inner end of said lever, and thesingletree 14, pivoted at the extreme right of the lever 7, the lever18, connected by the straps 15 to the left of the main doubletree and bythe straps 20 to the singletree 22 at the extreme left of said lever andprovided at its right end with the straps 24, the secondary doubletree26, connected by the straps 24 to the inner end of the lever 18, and theopposite singletrees 30 and their connecting-straps 28, the rear ends ofwhich are pivoted to the opposite ends of the secondary doubletree,substantially as specified.

2. In a draft-equalizer, the combination of the following elements: therear bar 1, the opposite converging straps 2 and 3, the former beingcurved and the latter diagonally disposed with relation to the line ofdraft and pivoted to the ends of the former and the two connected attheir rear ends to said bar, the

IOO

11min doubletree 5, pvoted, :1S :Lt 1, to the indoubletrees connected tothe levers 7 and 18, 1o

as Set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

IRWN J. STONER.

Witnessesz THOMAS WALSH, A. A. UANsoN.

